A013889 a(n) = 18^(5*n + 4).

104976, 198359290368, 374813367582081024, 708235345355337676357632, 1338258845052394702439737982976, 2528731089327963353099650821015994368, 4778209346999261057189801002565550445953024, 9028751479390699717312017900815782025058563653632

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..50
• Tanya Khovanova, Recursive Sequences
• Index entries for linear recurrences with constant coefficients, signature (1889568).

Crossrefs

Cf. A001027.

Programs

Magma

[18^(5*n+4): n in [0..10]]; // Vincenzo Librandi, May 27 2011

Formula

a(n) = 1889568*a(n-1), a(0)=104976. - Vincenzo Librandi, May 27 2011